ABC News reports that Massachusetts State Police are planning to return to Hernandez's house for a longer, more extensive search today because they believe he may have tampered with evidence.

A police source told the network that Hernandez's security system was smashed - including the surveillance videos. He also handed over his cell phone to investigators 'in pieces.'On Monday, before Lloyd's body was found, he also hired a cleaning crew to scrub the mansion, the police source said.